| 摘要 |
PURPOSE:To simplify constitution low decreasing a ceiling blow temperature and improving comfortableness, by constituting a device of compound type heater cores, electric control valves interrupting warm water to these heater cores and an electrically controlled water pump, in the case of the captioned device for a vehicle. CONSTITUTION:When a device is in room heating operation, a resultant resistance value changes in accordance with an in-room temperature of the room heating operation, and in accordance with the resultant resistance value, the device selectively controls an electrification amount to motors of right and left evaporator blowers 620, 630 and electrification to the first solenoid valve 440, 450. That is, in the first room heating mode, the device, which opens only the first solenoid valve 440 actuating only heater cores 411, 421 with the blowers 620, 630 in a low speed, generates low ability of room heating. In the second mode, the device uses only the heater cores 411, 421 with the blowers 620, 630 in a high speed, and in the third mode, the device further opens the solenoid valve 450 adding also heater cores 412, 422. By this constitution, the device, simplifying its constitution, enables a blow temperature to be low decreased and comfortableness to be improved. |
